Gauge for checking the center line of elongate parts



Dec. 7, 1948. E. c. Moss GAUGE FOR CHECKING THE CENTERLINE OF ELONGA'IE PARTS Filed July 10, 1946, v 3 Sheets-Sheet 1 FIG.

INVENTOR EC. MOSS A 7' TORNEV E. C. MOSS 'Dec. 7, 1948.

GAUGE FOR CHECKING THE CENTERLINE 0F ELONGATE PARTS Filed July 10, 1946 3 Sheets-Sheet 2 l/VVE/V TOP 5. a. MOSS A TTORNEY lllllllllllll ilk E. C. MOSS Dec. 7, 1948;

.GAUGE FOR CHECKING THE CENTERLINE OF ELONGATE PARTS Filed July 10, 1946 3 Sheets-Sheet 5 A T TOR/V5 Y Patented Dec. 7, 1948 RICE GAUGE FORCHECKING THECENTERLINEZ OEELONGATE PARTS Earl fi. Moss, Westfielcl N. J assignor to Western Electrie Company, "Incorporated; New York, N1 Y a corporation of New York rrliea qn 2 1 04 erially; 6 2,525

Claims. (01. 33 1741 This invention relates to, gages and more particfilarlYtO, gages fo1f fcheoking the cehterlines I offelo'n ate parts, mounted 'onfperjipheriesfoi" a 1 articles, withfrespe ct to the center? line of theaftlbls. l Inftheinanufacture of various kinds of apstr uj u gem external guides of submarine devio'es 'or othr'con'toured merrlbers which cannot be check e d by the commonforms of gaging ape paratus, othe j gages capable of determining the accuracy of the mounting of such parts are req ire Ali object of theinventionis to provide a gage which is simple in construction and highly efll cieln t in ope rati'on for lohecking the alignment of elo'n" ate parts eiiternally mounted on cylindrical structures with respe c t to the ce nterlinesof suehl struotures m i-in nv n i i i e a s.

mounted for ndoverner t in" a path parallel with the centerline of an article on the periphery of WhiRh an .9 9., t.i 3339 Re a lev i wslca t ed bra o tin em t r positioned to grip the part at any portion theie;

nd equipment, it is nec essary'to check the align entofreljated parts or' structures to a highreelof laccuracy." When these partsuor'.

2 Other objects and advantages will be apparent from the "fell: detailed description when considered in c'onjunctionfiwith the accompanying drawings, wherein. i

Fig.1 1' is' ,a vertioal seotior alview of the gage shown in position to gage a part mounted on the but is adjustable at the, initial gaging ,POS i tIOl l 1 so that the intermediategaging surface merger will registe 7 adjacent gaging surf e; jfloaiiine e em nt. the. other surfaces Iotthe gaging element ind s ll l ewer ee: I55

. WhlCh a outer peri hery; of a: cylindrical article;

ig; ZQisa'fragrnentary' top plan view, at a r el ale f iiflstt pture sho in i 1;

Fig. '3 is an enlarged 'segtion'al view taken along l n T3 95m A I Fig '4' is aflfragfrhntary sectional view taken 1 h 1 1. 84? twi -.7 i

Fig. 5:, is 'a' 'fragmntary, sectional View taken g tive view of the article, with elongatepartson its periphery, mounted in a positioiif tojbeg'aged' I W hodiment a cylindrical article lfl hasQegually spacedparts ll mounted on its periphery by'. suitable means such as welding. The parts I are substant'ially U -shape d in crosssection and are formed of sheet metal. The leadinggen jpr the p'artsll areiclosed by parts l2 lsoj's'eeured to their respective parts and to t eartiqlellmby suit'ablemeans such as Welding The ',parts ,ll andth'eir associated parts [2' ini stfbe ifnountf'ed' within predetermined limits of given lpositi nsw'ithiespect to the centerline of the' article Furthermore, although small variatio'ns rn .lbe allowed inlthe width of each part;the oeriterlineof each part'must be maintained withingiven limits ofv its starting point at the' leading" e'rid'oi eachlp'art. Furthermore, theleadingend ofeaoh part must be within given liniits 'j df lalknowri position with respect to the ceri terline of the'article and it is from this positionfiha t sucpessive gagingoperations of each.

partiareperformed,

The fartiole lflg has heads l4 and mounted on, its ehd sfthje headsbeing supported by a shaft wiexten mg through central openings 1'! in each I of .the heads. The ends of the shaft iii are. supported in yi-blocks ,l8,}on1y one of which is shownfinthe drawing. The axis of the shaft l6 is:identioal withth e. centerline of the article. A tahlefifi 'surrounds the article i0 and is provided with parallel guides 2i at each side of the article? Suital olemeans (not shown) supports the table zllrso that.the guides will lie in a common lplane parallel with a plane extending through;the centerl ine of the article. A slide 23 is regeivable in either guide 2! for movement in given, paths parallel with the .centerline of the ticle: lp el-eszl i gnd s r ss the guide 2 is recessed at to receive an arm 26. A pin 21 carried by the arm 26 extends through apertures 28 and 23 in the plate 24 and the slide 23 respectively to cooperate with a handle 30 in maintaining the arm at right angles to the slid-e. The handle has a reduced shank 3| extendin through aligned apertures 32 and 33 of the arm 26 and plate 24 respectively, the lower end of the shank being threaded and receivable threaded aperture 34 of the slide 23 to secure the arm in a selected position on the guide when the handle is tightened.

The arm 26 has a portion 38 which. extends downwardly and cooperates with a bracket 31 in forming a dovetail slot 38 for a corespondingly formed part of a floating element 39. An upper portion of the element 39 has gaging surfaces 40 and 4! which cooperate with a gaging surface 42 of the arm 26. Another gaging surface 43 of the floating element 39 cooperates with gaging surfaces 44, 45 and 46 of a gaging element 41.

The floating element 39 carries a pin 50 receivable in an aperture 5| of the vertical portion of the arm 26 to allow movement of the element 39 within any limits greater than those allowed for the variations in the centerlines of the parts with respect to the centerline of the article. The element 39 is cutaway at 53 to receive members 55 and 56 carrying jaws 57 and 58 respectively. Lugs 59 integral with both members 55 and 56 are p0- sitioned to ride in a vertical groove 60 in the element 39 to maintain movement of the jaws in aligned paths and to also maintain their gripping surfaces parallel at all times. An adjusting element 63 has portions 64 and 65 with left and right hand threads, respectively disposed in similarly threaded apertures in the members 55 and 53. Through the aid of a knurled member 66 mounted on the upper end of the element 63, the element 63 may be rotated in either direction to cause movement of the jaws 51 and 58 toward and away from each other. A cover plate 61, mounted upon the element 39 to close th cutaway portion 53, carries a yoke 68 which straddles a reduced central portion 69 of the member 63 to hold the member against axial movement.

The gaging surfaces 44, 45 and 46 are in the form of steps in the gaging element 4! which is carried by a piston-like member '12 movably dis posed in an aperture 73 in the arm 26. An internally threaded member M, connected to the member H by a shank l5 integral with the member It. is moved upwardly or downwardly through the rotation of a threaded element 18. The element TB is mounted in an aperture 17 of the arm 26 and is held against axial movement by a bracket 18.

' Upon considering the operation of the gage, let it be assumed that the article If] is mounted in a gaging position with one of its diametrically opposed parts i'l thereof disposed in gaging positions adjacent each of the guides 21 of the table 20. The gage may then be mounted on either guide 2| depending upon which part is to be gaged first. The operator then moves the slide with the gage to the leading end of the adjacent parts H near the part 12. During this movement, the jaws 51 and 58 are opened to allow for the free movement of the gage relative to the part. Furthermore, during movement of the gage, the element 39, with the jaws and asociated structure, floats in its dovetail connection with the arm 26. When the gage has been disposed in the propelposition for the initial gaging operation, the operator locks the slide 23 in the guide 21 with the member'3land inathen rotates the knurled member 66 to close the laws 51 and 58 on the leading end of the part II. If the gage surfaces 4% and 4| are positioned respectively below and above the gaging surface 42, the centerline of the part at the leading end thereof is within predetermined limits of the given position with respect to the centerline of the article. At this time, while the jaws 51 and 58 are clamped on the leading end of the part the threaded element 16 is adjusted to position the gaging surface 45 of the gaging element 41 in a plane with the gaging surface 43. The purpose for this adjustment is to set the gage so that the operator may determine whether or not the centerline of the part at subsequent gaging positions throughout its length remains within given plus or minus (i) limits, indicated by the gaging surfaces 44 and 46 associated with the gaging surface 43, from the given position. The operator then loosens the jaws and the slide and moves the gage longitudinally of the guide to the next gaging position. Each time the operator performs gaging operations on the part, he merely tightens the jaws 57 and 58 on the part and observes the relationship of the gaging surface 43 with respect to the gaging surfaces 44, 45 and 46. If the gaging surface 43 falls between the gaging surfaces 44 and 46 that portion of the part is approved, that is, its centerline is within given limits of the selected position with respect to the centerline of the article.

If desired, like gages may be employed to simultaneously gage diametrically opposed ribs or parts I I through the aid of the parallel guides 2|. Furthermore, thegage may be readily re moved from one guide and inserted in the other guide to check the diametrically opposed part I I. After the second part has been gaged, the article my be rotated on its shaft [6 to bring the other parts into position for gaging.

Although specific improvements of the invention have been shown and described, it will be understood that they are but illustrative and that various modifications may be made therein without departing from the scope and spirit of this invention as defined by the appended claims.

What is claimed is:

1. A gage for checking the centerline of an elongate part with respect to the centerline of a cylindrical article upon the periphery of which the part is mounted, the gage comprising an arm, means to support the arm for movement in a guided path parallel with the centerline of the article, the arm having a fixed position gaging surface, a floating element, means fixed to the arm to support the element and allow it to move freely in a fixed path relative thereto, the floating element having spaced gaging surfaces adjacent the gaging surface of the arm, and jaws carried by the floating element to grip the part and cause movement of the element and its gaging surfaces relative to the arm and its gaging surface, the relative positions of'the gaging surfaces indicating whether or not the centerline of the part is within predetermined limits of a given position relative to the centerline of the article.

2. A gage for checking the centerline of an elongate part with respect to the centerline of a cylindrical article upon the periphery of which the part is mounted, the gage comprising an arm, means to support the arm for movement in a guided path parallel with the centerline of the article, a floating element, means fixed to the arm to support the element and allow it to move freely in a fixed path at an angle with respect to the centerline of the article, the floating element having a gaging surface, jaws carried by the floating element to grip the part and cause movement of the element and its gaging surface relative to the arm, and a gaging element carried by the arm and having spaced gaging surfaces cooperating with the gaging surface of the floating element to indicate whether or not the centerline of the part at the portion being gaged is within predetermined limits of a given position relative to the centerline of the article.

3. A gage for checking the centerline of an elongate part with respect to the centerline of a cylindrical article upon the periphery of which the part is mounted, the gage comprising an arm, means to support the arm for movement in a guided path parallel with the centerline of the article, the arm having a fixed position gaging surface, a floating element, means fixed to the arm to support the element and allow it to move freely in a fixed path relative thereto, the floating element having spaced gaging surfaces adjacent the gaging surface of the arm, and jaws carried by the floating element and movable relative to each other to grip the part at an initial and at subsequent spaced portions thereof to centrally locate the floating element relative to the centerline of the part at the said portions, the relative positions of the gaging surfaces indicating whether or not the centerline of the part is within predetermined limits of a given position relative to the centerline of the article.

4. A gage for checking the centerline of an elongate part with respect to the centerline of a cylindrical article upon the periphery of which the part is mounted, the gage comprisin an arm, means to support the arm for movement in a guided path parallel with the centerline of the article, the arm having a fixed position gaging surface, a floating element, means fixed to the arm to support the element and allow it to move freely in a fixed path relative thereto, the floating element having spaced gaging surfaces adjacent the gaging surface of the arm, jaws carried by the floating element and movable relative to each other to grip the part at an initial and at subsequent spaced portions thereof to centrally locate the floating element relative to the centerline of the part at the said portions, the relative positions of the gaging surfaces indicating whether or not the centerline of the part is within predetermined limits of a given position relative to the centerline of the article, a gaging element carried by the arm and having gaging surfaces, and means to actuate the gaging element to position the gaging surfaces relative to the floatin element at the said initial portion to indicate whether or not the centerline of the part at the said subsequent portions is within given limits of the centerline of the initial portion of the part.

5. A gage for checking the centerline of an elongate part with respect to the centerline of a cylindrical article upon the periphery of which the part is mounted, the gage comprising an arm, means to support the arm for movement in a guided path parallel with the centerline of the article, the arm having a fixed position gaging surface, a floating element, means fixed to the arm to support the element and allow it to move freely in a fixed path relative thereto, the floating element having spaced gagin surfaces adjacent the gaging surface of the arm, jaws carried by the floating element and movable relative to each other to grip the part at an initial and at subsequent spaced portions thereof to centrally locate the floating element relative to the centerline of the part at the said portions, the relative positions of the gaging surfaces indicating whether or not the centerline of the part is within predetermined limits of a given position relative to the centerline of the article, a gaging element carried by the arm and having outer and an intermediate gaging surfaces, means to move the gaging element to position the intermediate gaging surface in registration with a surface of the floating element at the said initial portion to indicate whether or not the centerline of the part at the said subsequent portions is within given limits of the centerline of the initial portion of the part.

EARL C. MOSS.

No references cited. 

